#include #include #include using namespace std; using namespace Magick; class FlipWorker : public Napi::AsyncWorker { public: FlipWorker(Napi::Function& callback, string in_path, bool flop, string type, int delay) : Napi::AsyncWorker(callback), in_path(in_path), flop(flop), type(type), delay(delay) {} ~FlipWorker() {} void Execute() { list frames; list coalesced; list mid; readImages(&frames, in_path); coalesceImages(&coalesced, frames.begin(), frames.end()); for (Image &image : coalesced) { flop ? image.flop() : image.flip(); image.magick(type); mid.push_back(image); } optimizeTransparency(mid.begin(), mid.end()); if (type == "gif") { for (Image &image : mid) { image.quantizeDither(false); image.quantize(); if (delay != 0) image.animationDelay(delay); } } writeImages(mid.begin(), mid.end(), &blob); } void OnOK() { Callback().Call({Env().Undefined(), Napi::Buffer::Copy(Env(), (char *)blob.data(), blob.length())}); } private: string in_path, type; bool flop; int delay; Blob blob; }; Napi::Value Flip(const Napi::CallbackInfo &info) { Napi::Env env = info.Env(); Napi::Object obj = info[0].As(); Napi::Function cb = info[1].As(); string path = obj.Get("path").As().Utf8Value(); bool flop = obj.Has("flop") ? obj.Get("flop").As().Value() : false; string type = obj.Get("type").As().Utf8Value(); int delay = obj.Has("delay") ? obj.Get("delay").As().Int32Value() : 0; FlipWorker* flipWorker = new FlipWorker(cb, path, flop, type, delay); flipWorker->Queue(); return env.Undefined(); }